Hi there, looks like you will need to get a replacement device. Can you please phone 0800 729 254 and select option 1 for Technical Support. They will arrange for a courier pack to be sent to you so you can return the faulty device, along with a replacement device. The 'System Tampered' message usually appears if a device is tampered with, for example trying to open the outer shell, but it could be caused by dropping the device. When we get it back we will investigate the cause of the problem.